Named after the Jim Glickenhaus, the defiant hunk of a man who created the Glickenhaus SCG007 Hypercar, it's describing the rejection of odds of winning a motorsport race by cursing their winning opponents with mechanical failures (known as "Glickening").
I won Le mans 24 Hours by yelling "It's glickin time". All the cars in front of me just spontaneously exploded on the last hour.
The act of slarving a dode to the point in which one is only able to utter "glack" through the tiny air crevasse between their lips and the glack-causing instigator's genatalia.
And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!